Low iPhone Speakers? Need magic!
I was standing with a friend and suddenly something buzzed which turned out to be his iphone! I told him why don’t you increase the volume of it’s speakers? and to my amusement he said, that’s the Max! I was like o_0!!
Anyway, that was a long time back and I just saw / heard that you need some black magic to increase iPhone’s speaker volume by almost 40%! What? Exactly! I did some reaseach and this is what these crazy people came up with!
STICK A NEEDLE!, WOT!? According to these holy magicians you need to “stick a needle through the holes in the speaker enclosure”…. and you’ll possibly get 40% increase in the volume! via this simple-yet-destructive trick of perforating the thin plastic which covers the speaker.
But hey! if you want to mess with the warranty, be my guest and do let me know if it really works!! 
WoT! a friend just confirmed that he tried this and this works =D